sensors Mode-S transponder

507CAE

ICAO 24-bit transponder address · allocated to Uzbekistan

Currently assigned to UK75001 · BOEING 757-200

Hex
507CAE
Octal
24076256
Decimal
5,274,798
Country
UZ
Tail
UK75001
Type
B752
Broadcasting now · callsign MFX7529 · 37,000 ft
Flights observed
4
Distinct callsigns
2
Country
UZ
Last broadcast
1d ago

Current position

507CAE is currently broadcasting. Map zoomed to live position.

Country allocation

The ICAO 24-bit address 507CAE falls within the block assigned to Uzbekistan (UZ) by ICAO Annex 10, Volume III. Every aircraft registered in Uzbekistan receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 2 distinct

Callsign Airline Flights Last seen
MFX7678 - 3 2026-04-13
MFX7677 My Freighter LLC 1 2026-04-13

Recent flights last 4

DateFlightRouteTakeoffLandingDuration
2026-04-13 MFX7678 - Apr 13, 16:15 UTCApr 13, 18:45 UTC2h 30m
2026-04-13 MFX7678 - Apr 13, 15:50 UTCApr 13, 18:45 UTC2h 55m
2026-04-13 MFX7678 - Apr 13, 15:35 UTCApr 13, 16:15 UTC40m
2026-04-13 MFX7677 TAS → TAS Apr 13, 03:20 UTCApr 13, 03:45 UTC25m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the UK75001 page for operator, model, and routing details .

Mode-S 507CAE frequently asked

What is Mode-S code 507CAE?
507CAE is an ICAO 24-bit transponder address. Allocated to Uzbekistan. Assigned to UK75001.
Where is Mode-S 507CAE registered?
Mode-S code 507CAE is allocated to Uzbekistan (UZ). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is 507CAE broadcasting right now?
Yes. Mode-S 507CAE is currently airborne.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex 507CAE, octal 24076256, decimal 5,274,798.
What flights does 507CAE operate?
Mode-S 507CAE has broadcast 2 distinct callsigns, including MFX7678, MFX7677.